Anterior Pelvic Bones - Superioinferior "Inlet View" (Lilienfield Method)

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Radiographic Positioning


Adult
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Name of projection Anterior Pelvic Bones - Superioinferior "Inlet View" (Lilienfield Method)
Area Covered Pelvic ring or inlet (superior aperture)
Pathology shownAssess pelvic trauma for posterior displacement or inward or outward rotation of the anterior pelvis
Radiographic AnatomyPelvis Radiographic Anatomy
IR Size & Orientation 35 x 43cm
Landscape
Film / Screen Combination Regular
(CR and DR as recommended by manufacturer)
Bucky / Grid Moving or Stationary Grid
FilterNo
Exposure 70 kVp
16 mAs
FFD / SID 100cm
Central Ray CR angled caudad 40° (near perpendicular to plane of inlet)
CR directed to patient midline at level of ASIS
Collimation Four sides of collimation
Collimate laterally to skin borders
Markers Distal and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
RespirationSuspended
Positioning
  • Patient supine on table, arms at side or across upper chest
  • Cushion for head and under knees
  • Midsagittal line of patient aligned to center line of table
  • Ensure pelvis is not rotated
  • CR angled caudad 40° (near perpendicular to plane of inlet)
  • CR directed to patient midline at level of ASIS
Critique

Positioning
Area Covered
Collimation
Exposure
Special Notes